Home / 13,363.32-18,432.78-9,173.88

Finding the Fourth Proportional to 13,363.32, 18,432.78 and 9,173.88

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Solution

The fourth proportional to 13,363.32, 18,432.78 and 9,173.88 is: 12,654.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.32 : 18,432.78 = 9,173.88 : x
  2. Step 2: Convert to fraction form
    13,363.32/18,432.78 = 9,173.88/x
  3. Step 3: Cross multiply
    13,363.32x = 18,432.78 × 9,173.88
  4. Step 4: Simplify right side
    13,363.32x = 169,100,111.79
  5. Step 5: Solve for x
    x = 169,100,111.79/13,363.32
  6. Step 6: Final answer
    x = 12,654.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.